if(EXISTS "${CURRENT_INSTALLED_DIR}/include/gmp.h" OR "${CURRENT_INSTALLED_DIR}/include/gmpxx.h")
    message(FATAL_ERROR "Can't build ${PORT} if gmp is installed. Please remove gmp, and try to install ${PORT} again if you need it.")
endif()

if(VCPKG_CRT_LINKAGE STREQUAL "static" AND VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
    message(FATAL_ERROR "${PORT} currently can only be built using the dynamic CRT when building DLLs")
endif()

vcpkg_from_github(
    OUT_SOURCE_PATH SOURCE_PATH
    REPO wbhart/mpir
    REF cdd444aedfcbb190f00328526ef278428702d56e # 3.0.0
    SHA512 f46e45bdba27c9f89953ba23186b694486fd3010bd370ea2de71a4649a2816e716a6520c9baa96936f1884437ef03f92b21c0b1fb5b757beba5a05fed30b2bfc
    HEAD_REF master
    PATCHES enable-runtimelibrary-toggle.patch
)

if(VCPKG_TARGET_IS_LINUX OR VCPKG_TARGET_IS_OSX)
    vcpkg_find_acquire_program(YASM)

    if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
        set(SHARED_STATIC "--enable-static --disable-shared")
    else()
        set(SHARED_STATIC "--disable-static --enable-shared")
    endif()

    set(OPTIONS "--disable-silent-rules --enable-gmpcompat --enable-cxx ${SHARED_STATIC}")

    string(APPEND VCPKG_C_FLAGS " -Wno-implicit-function-declaration")
    string(APPEND VCPKG_CXX_FLAGS " -Wno-implicit-function-declaration")

    # on Linux, autoconf is required; on macOS, it isn't
    if(VCPKG_TARGET_IS_LINUX)
        set(AUTOCONFIG "AUTOCONFIG")
    endif()

    vcpkg_configure_make(
        SOURCE_PATH "${SOURCE_PATH}"
        ${AUTOCONFIG}
        OPTIONS ${OPTIONS}
    )

    vcpkg_install_make()

    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
        file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
        file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share")
    endif()

elseif(VCPKG_TARGET_IS_WINDOWS)
    if(VCPKG_PLATFORM_TOOLSET MATCHES "v141")
        set(MSVC_VERSION 15)
    else()
        set(MSVC_VERSION 14)
    endif()

    if (VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
        set(DLL_OR_LIB dll)
    else()
        set(DLL_OR_LIB lib)
    endif()

    if(VCPKG_CRT_LINKAGE STREQUAL "static")
        set(RuntimeLibraryExt "")
    else()
        set(RuntimeLibraryExt "DLL")
    endif()

    file(REMOVE_RECURSE "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}")
    file(MAKE_DIRECTORY "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}")
    file(GLOB FILES "${SOURCE_PATH}/*")
    file(COPY ${FILES} DESTINATION "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}")

    vcpkg_build_msbuild(
        PROJECT_PATH "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/build.vc${MSVC_VERSION}/${DLL_OR_LIB}_mpir_gc/${DLL_OR_LIB}_mpir_gc.vcxproj"
        OPTIONS_DEBUG "/p:RuntimeLibrary=MultiThreadedDebug${RuntimeLibraryExt}"
        OPTIONS_RELEASE "/p:RuntimeLibrary=MultiThreaded${RuntimeLibraryExt}"
    )

    if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
        vcpkg_build_msbuild(
            PROJECT_PATH "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/build.vc${MSVC_VERSION}/${DLL_OR_LIB}_mpir_cxx/${DLL_OR_LIB}_mpir_cxx.vcxproj"
            OPTIONS_DEBUG "/p:RuntimeLibrary=MultiThreadedDebug${RuntimeLibraryExt}"
            OPTIONS_RELEASE "/p:RuntimeLibrary=MultiThreaded${RuntimeLibraryExt}"
        )
        if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
            file(GLOB REL_LIBS_CXX "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Release/mpirxx.lib")
        endif()
        if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
            file(GLOB DBG_LIBS_CXX "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Debug/mpirxx.lib")
        endif()
    endif()

    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
        file(GLOB HEADERS
            "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Release/gmp.h"
            "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Release/gmpxx.h"
            "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Release/mpir.h"
            "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Release/mpirxx.h"
        )
        file(INSTALL ${HEADERS} DESTINATION "${CURRENT_PACKAGES_DIR}/include")

        file(GLOB REL_DLLS "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Release/mpir.dll")
        file(GLOB REL_LIBS "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Release/mpir.lib")
        list(APPEND REL_LIBS ${REL_LIBS_CXX})

        file(INSTALL ${REL_DLLS} DESTINATION "${CURRENT_PACKAGES_DIR}/bin")
        file(INSTALL ${REL_LIBS} DESTINATION "${CURRENT_PACKAGES_DIR}/lib")
    endif()
    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
        file(GLOB HEADERS
            "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Debug/gmp.h"
            "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Debug/gmpxx.h"
            "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Debug/mpir.h"
            "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Debug/mpirxx.h"
        )
        file(INSTALL ${HEADERS} DESTINATION "${CURRENT_PACKAGES_DIR}/include")

        file(GLOB DBG_DLLS "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Debug/mpir.dll")
        file(GLOB DBG_LIBS "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}/*/*/Debug/mpir.lib")
        list(APPEND DBG_LIBS  ${DBG_LIBS_CXX})

        file(INSTALL ${DBG_DLLS} DESTINATION "${CURRENT_PACKAGES_DIR}/debug/bin")
        file(INSTALL ${DBG_LIBS} DESTINATION "${CURRENT_PACKAGES_DIR}/debug/lib")

        if(VCPKG_LIBRARY_LINKAGE STREQUAL static)
            file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/bin" "${CURRENT_PACKAGES_DIR}/debug/bin")
        endif()
    endif()

    vcpkg_copy_pdbs()
endif()

file(INSTALL "${SOURCE_PATH}/COPYING" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}" RENAME copyright)